Xiaomi Air Purifiers - Gen 1 and Gen 2 comparisons

Mi air purifier 2 is launched on November 24, 2015, it can be considered as the upgrade generation of the earlier Generation 1. Compared to the Gen 1 model, the biggest change was undoubtedly in its volume on a smaller foot-print, but also less space occupied. Mi air purifier Gen 2 is targeted mainly for small apartment users which can provide for purification area of 23-48 m².

Xiaomi has made the Air Purifier 2 lighter as well as smaller. As compared to the 735x260 mm laterally size Air Purifier 1, the Air Purifier 2 measures simply 520×240 mm.

The foot print area is also 15% smaller.

It houses a solitary electric motor, twin booster fans (which detoxifies at an effective variety of up to 39.6m²), The design of the Mi Air Purifier 2 was inspired by aircraft engines and comes with an anti-formaldehyde enhanced filter that's replaceable. It also filters 99.99% of PM 2.5 particles and up to 92% of formaldehyde (a colorless, flammable, strong-smelling chemical that is used in building materials and to produce many household products).

Xiaomi says the more compact design is made possible by a new single-motor, dual-fan design, which has enabled it to shrink its dimensions by up to 40 percent over its predecessor. However, its smaller size means that Air Purifier 2 has had to take a slight performance hit compared to the predecessor's dual-motor design. Its Clean Air Delivery Rate (CADR), or the amount of air it cleans per minute, is now 330m³/h in standard mode, compared to the 406m³/h for the larger model.

Still, this can go up to 388m³/h in Turbo mode and Xiaomi says it can filter the air in a 23m² room in only 10 minutes.

In addition to the smaller foot-print compared to Gen-1, some optimization was also done to the motor, dual-fan blower motor design in Gen-1 is now reduced to single fan motor in Gen-2, this also allowed energy saving of 58% compared to Gen-2.

The above chart shows the different recommended room areas for different CADR value, so that air can be purified efficiently by the air purifier.

Although smaller in size, and the motor going through some optimization and changes, but its purifying effect does not seem to lowered, the one-hour PM2.5 purification can reach 97.7%.

In the purification capacity, CADR is now 330 m³ per hour for standard mode, and in the turbo mode CADR is 388 m³ per hour, clean up area from 27.2 - 46.6 m² (292 - 500 ft²), it takes 10 minutes to complete a purification process once for a 23 m² (250 ft²) room.The firm additionally urges that the Air Purifier 2 is substantially more power efficient – 58 percent even more power efficient.

The company states that the newly improved device is now 11 percent quieter than in the first generation AP, and also makes merely 30db of noise when switched over to sleep mode.

The indicator LED is placed at 7.5cm from the ground, just to low enough to avoid the light interference when reading on the sofa or resting in bed.  The light sensor can be adjusted according to the indoor light LED brightness, the indicator can also be completely off.

Mi air purifier 2 is an intelligent air purifier with a WiFi connection to the phone, you can use Mi Smart Home App for live view of indoor air quality changes at home and will base on bedroom area to adjust according to the most appropriate mode of operation. It is smart enough to learn the user's habits, such as automatically adjusted to sleep mode before you go to sleep, and  to automatically shut down when they go out.

New Addition - Control of new smart phone temperature, humidity sensor

Mi Air Purifier 2 had added the high quality Japan SHINYEI sensor, which provide real-time detection of indoor air PM2.5 content. The Air Purifier will change according to the data for air quality, and automatically switches to the optimum decontamination mode. In addition, AP2 also adds temperature, humidity sensors, which will provide mobile phone view on indoor air quality, temperature and humidity changes at a glance, helping you to always grasp the comfort of the indoor environment.

Coming to the mechanism, the Air Purifier 2 packs a quality Tri-filters: Pre-filter, HEPA filter and an Activated Carbon filter that comes with a filtering capability of whooping 99.7% of PM 2.5

Comparing the official specifications

Dimensions : First Generation is taller, second generation is smaller in size, the filter is common use for both generations.

Purification efficiency: First generation has better purification performance than 2nd generation, and with larger decontamination area as well.

Smart Module: Both generation 1 & 2 have WiFi module and air quality sensors, 2nd generation has added multi temperature and humidity sensors.

Power: First generation has maximum power consumption of 75W, 2nd generation has maximum power consumption of 31W.

Package Contents: Both generations has the same content, while the packaging size of 1st generation is much bigger, due to the taller size of the Air Purifieritself.

Purifier functions: Both generations have automatic mode, sleep mode, the switching mode switching, WiFi indicator, air quality indicator, particulate matter sensor, the difference is first generation has light sensor and Turbo mode, and the second generation has the Favorite mode.

Smart phone remote control functions: Both generations can be accessed through Smart phones for remote control functions, the second generation has a new temperature and humidity testing and comfort assessment functions.

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Shopping smart on 11Street Marketplace

This post is for our buyers who are new to 11Street, many had asked how to benefit from 11Street, and why should they shop on 11Street and not from other similar online marketplace.

Buyers like discounts, the more the better, and this could be the only factors that continuously bring buyers back to the same marketplace, especially if the product and services qualities do not differ that much from other marketplace.

Disclaimers: All features and benefits written in this post is accurate at the time of the writing, some of them may be subject to change from time to time by 11Street, some withdrawn and some new benefits introduced.

Shocking deals and other offerings
Shocking deals are products that had been put together by each of the product merchandising managers at 11Street, usually at huge discounts if compare with their normal list price. Buyers looking for bargains usually browse through this section first, usually on random shopping with no specific target.

Shocking deals is available at http://www.11street.my/shocking-deals

Buyers who knows what they are looking for will generally search for the products through 11Street's search engine, or landed on the product page through leads from the daily 11Street email EDM, 11Street mobile apps alerts, or subscriptions through the 11Street Line account.

11Street's Coupon systems
The discount structure on 11Street is driven by the various Shopping Cart Coupons that they are offering throughout the whole 11Street site.

What is a shopping cart coupon?
The shopping cart coupon is applicable to a purchase whose amount meets certain predetermined conditions (e.g. minimum purchase of RM30). They are offered at specific discount rate, usually with a maximum cap amount, and valid between specific dates.

Where do I get these coupons?
You must get access to 11street, either through their online marketplace portal at www.11street.my, or through the 11Street mobile Apps (see the last section of this post on how to install their mobile apps).

Various promotion coupons are usually available on the landing page of the web portal or mobile App. Some are only applicable for specific products on promotion, some for specific product categories (e.g. electronics, or Home & Living), some applicable for the all products across the whole marketplace stores.

The following are examples of sections on 11Street that you can find the coupons:

Enjoy benefits from 11Street Promotions
http://www.11street.my/benefit/promotion.do

Major promotions currently offered
http://www.11street.my/benefit/main.do

TIPS: Coupons from 11Street will usually be released at 11:00 am daily, or specific time as promoted by each coupon categories, limited from a few hundreds to 1,000 coupons per day on first come first serve basis, you'll need to know the specific time each coupon category is available, be there as early bird to download one.

The following is an example of coupon offered by Citibank, where you can find at the "Partnership" section of the landing page on 11Street.

After clicking on the Citibank link, you will see the numbers of coupons available for the period, and the remaining numbers available for the period. Click on "Download" to grab the coupon.

Validity of coupons
Usually there are validity dates for coupons, most last 7 days.

Note that a post-purchase cancellation or return may lead to loss of your eligibility for shopping cart coupon discount, and if this occurs the discount may be withdrawn, not sure whether the applied coupons will be returned to your account.

Where can I see my coupons?

You can do that at [My Page >  Coupon].

How do I apply the Discount Coupon?

You must apply the Discount Coupon to purchase items you order at discounted prices.  

Discount coupons are used when making payment for purchase of items, here is how to apply.  
1. You must have items in your shopping carts;
2. Go to [Order/Payment > Discount Coupon/Coupon] and 'Apply Coupon'.  
3. Select a coupon(s) from the Apply Coupon popup window and click 'Apply'. Only applicable coupons will appear on the Apply Coupon popup window.

※ Please note that you can apply only one free shipping rate coupon even if there may be multiple shipping rates incurred from placing several different items from different sellers.

There's a catch in the discount rate!

Note: There are usually caps in the discount where maximum discount redeemable is RM30, RM50 or RM100, depending on the promotion coupons.

What types of coupons are available?

• Item Discount Coupon: This coupon is applicable to a single item only.
• Instant Discount Coupon: This coupon is applicable to as many units of the eligible item as     you purchase.
• Free/Discount Shipping Rate Coupon: This coupon exempts or discounts the domestic shipping rate.
• Shopping Cart coupon: This is applicable to a purchase whose amount meets predetermined     conditions.     

More Goodies on 11Street mobile Apps
Most online shopping sites are now encouraging their buyers to have their mobile apps installed, as it is much more easier to reach buyers through apps than web, in which buyers need to sit in front of the PC to access the product page. In addition, any promotion messages on mobile apps can reach buyers easily and instantly as most people have their mobile with them all the time these days.

Coupons are available on mobile apps as well, some are ONLY available for App users, that's why sites want more users to be on mobile Apps than on web, app exclusive coupons will attract more buyers to have the apps installed on their mobile phones.

 

Download and install the 11Street mobile Apps

You can install the mobile app by scanning the following QR codes

                      

Android                                                                      IOS       

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Linbell G2 - Wireless Door Bell review

We all should be very familiar with doorbells, especially multi-storey buildings, which are rarely without doorbells. Technology is changing rapidly now, and the doorbell will continue to live in our daily lives, although there are other high-tech products, but they often remain complex in settings, and requires all aspects of a workable network, so a simple and practical solution will always save the day. 

The market has a variety of doorbell products, for low cost doorbell, it may not last longer than a month, for a better quality doorbell, the battery may not last that long without replacement, if we do not replace the battery, corrosion may occurs and may damage the doorbell. Battery disposal will also be harmful to the environment.

Main Technologies

Linbell G2 self-power new generation wireless doorbell requires no battery, using the pressing of button to convert kinetic energy into electrical energy, to achieve the self-generating power. For installation, it requires no wiring as in the traditional doorbell, as it operates on a wireless transmission, with up to 100 metres distance, and if configured with 3 relays, it can reach a maximum of 300 metres*.

Linbell G2 has solved the dead battery problem for traditional doorbell, by using a self-generating power design, without any battery required. The self-generating power is achieved by pressing the transmitter, which has a patented built-in energy harvesting technology called "Worm Micro energy generator", which only requires 350g of pressing pressure, and had significantly reduced the pressing force required to generate the power to send the signal to the receiver.

Every tiny innovation is the result of numerous and repeated trials in over a thousand times of calculations, in the process of designing and manufacturing, a lot of tests are being done to find out the most suitable number of pressure in the button, which now Linbell guarantee 200,000 pressing commitments.

After receiving signal, the receiver emmits sound and small LED light hint. Originally used in mobile phone, the product has an inside hidden luminous Led. The transmission distance between the transmitter and receiver is 100 metres, but the receiver has 3 replay functions, so the transmission distance can be extended to 300 metres*  

* Depending on the numbers of walls in between, which may weaken the signal slightly, depending on material of walls.

The lightweight doorbell is also water proof, suitable for both indoor and outdoor installation for the transmitter. In order to meet the requirements of different people, it also offer four level adjustable volume, and had 38 music tunes for selection, to solve traditional boring "ding-dong" sound.

Different combinations of Transmitter and Receivers

Variations of usage

Apart from being deployed as door bell, Linbell G2 can also be used as beepers and deployed as patient calling device in hospital, senior citizen calling device, pregnant calling device at home, and even as wake up music alarm for you children in the morning.

Installation

Packaging

Packaging with brown paper packaging, after removing the outer cover, two doorbell is unfolding before us, a receiver and a transmitter, with circular design in pure white, giving a elegant modern look.

For the accessories, it comes with a manual, fixing screws, 3M double-tape, and "Please ring the doorbell" stickers in Chinese.

Linbell G2 self-generation wireless doorbell receiver.

Linbell G2 self-generation wireless doorbell consist of 2 devices, the receiver and the transmitter respectively, the picture above is the receiver, with a circular design, in white color. It is made of fireproof PC material, with a small round lobe at the lower end as indicator light, when someone presses the doorbell, there will be blue flashing lights and sound of doorbell tune selected.

The receiver comes in diameter of 37mm with thickness of 20mm, slightly larger if compared to the traditional doorbell, but this make it easier to locate the doorbell position. There are two buttons at the side, function both as volume keys and music tune selection. There are 4 adjustable volume for selection, which can be adjusted according to the immediate needs of the volume, the music tunes also solve the relatively boring "ding-dong" sound, with 38 selectable musical tunes.

The receiver comes in international 2-pin socket, with common voltage of 220V, the speaker is located below two interpolation, with a raised design, so that the speaker sound is not obstructed when we inserted the receiver into the wall power socket.

Linbell G2 self-generation wireless doorbell transmitter end

The transmitter uses the same circular white design, with the front added an LED blue light that will lit in blue light when we pressed. This is a consistent design with small and exquisite shape.

When the transmitter button is pressed, the pressing kinetic energy is converted into electrical energy, to achieve self-generating power, where no batteries are required to achieve a permanent use. The pressing force is just 350g, which is enough to achieve self-generating power, and directly transmitted to the receiver end. The receiving distance is pretty wide range, with up to 100 meters wireless range.

Installation Reminders

The doorbell transmitter is not recommended to be fit on metal door, if you want to have better wireless strength, choose the wooden doors, in order to maximize the wireless range.

The accompanied 3M double-tape adhesive can be directly attached to the transmitter, using the 3M adhesive can ensure a solid paste on the wall, you can tear off without leaving adhesive residue.

Installation is particularly convenient, just plug the receiver directly into the power outlet, and the transmitter with 3M stickers affixed to the door, up to 100 meters, in the actual test, the distance can go about 80 meters without any delay and the response of the wireless receiver is still relatively stable.

Overall, it takes a relatively simple way to install and use, the plug and play, without complex operation that is to be completed to support the 100 m long distance wireless.

Watch the following Linbell G2 video to know more about the design of the product




Selectable 38 Music Tunes
You can select any of the 38 built-in music tunes and the default doorbell sound, sample of the 38 tunes can be listened from the video below, to select, simply press the "down" button on the receiver.
 

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Purchasing reference for Linbell G2, plus installation

Special purchase reference

The Linbell G2 series of doorbell has a very unique feature, it can be configured with different numbers of transmitters and receivers, depending on the requirements of deployments.

For buyer's convenience, all doorbell set had already been coded out of the box when shipped, which means it is ready to be used. Coding is necessary when adding or replacing the transmitter. Through coding, one transmitter can control from one to several receivers, or several transmitters can control one receiver.

The followings are one transmitter configured with one to multiple receivers, up to a maximum of 4 receivers.

One : one -  for less than 1,600 square feet apartment

One : two -  for more than 1,600 square feet, two floors or other large units

One : three -  for more than 1,600 square feet, three floors or requires receives install in rooms

One : four -  for more than 1,600 square feet, multiple floors or requires receives install in multi rooms

The followings are multiple transmitters configured with one the same receiver:

Two : one - for special unit with two doors or entrance
Two : Two - for special unit with two doors and multi floors

Installation Guide

You can add or remove any new components anytime later, by pairing it to any existing Linbell transmitter(s) / receiver(s), the following are the adding / deleting codes.

If your existing transmitter is already fitted onto the wall, just mount the new receivers on an extension cord and bring it near the mounted transmitter for pairing.

Product Specifications

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