3M Filtrete Anti Pollution Filter for converting AC into air purifier (White, 2 Pieces)

Very easy to install on any existing AC filter or Air Purifier filters.I have been using it regularly for 3 months on AC filter and Air Purifier filter to enhance the filter life.>> The 3M Filter acts as the first layer of filtration process and block all the dust from entering the Air Purifier filter.It will enhance the life of your air purifier filter life drastically.>> Simply cut the filter as per the filter size of your Air Purifier and stick it using the tapes provided in the package.>> You can see the picture attached of the 3M filter installed in my Air Purifier it has turned black and blocked a lot of dust in 20 days. You will be shocked to see the amount of dust it catches within 15-30 days.>> Depending on the amount of dust in your area, you will need to replace this filter every 20 - 45 days.>> Installed on AC filter also to protect from dust. Works very well with AC too.>> Superb product for additional filtration

Installation - Installed within my Hitachi window AC since 2 weeks now. Though designed for a split AC, it fitted my window AC perfectly (refer images) - I did not even have to cut or resize it in any manner (gaps left at both sides for airflow as is recommended). The pack comes with two filters, I have only used onePerformance - Note that I installed it behind my regular AC filter (and not in front of it), meaning that it is catching substances that have passed through the regular AC filter. In only 2 weeks the 3M filter has turned largely black (refer images) - the white lines are where the regular AC filter is shielding the 3M filter and hence where it has retained its original white colour. FYI I live in Kolkata on a relatively quiet dead-end residential street1. The AC output drops slightly - in my case its been small and acceptable. Could however irritate you if your AC is particularly old/weak, or during peak summer months (am currently using it in September in Kolkata)2. For the brutal pollution during winter months in most Indian cities, there is no way this product can match stand alone air purifiers - while its capturing all this 'black', the drop in pollution per my air quality meter is not as fast or strong as an air purifier would be3. My big issue with this product though is its life. On the one hand am happy that it captures all this dirt but on the other hand am unsure how effective it will be after 1-2 weeks once it has turned this blackIn summary, it is definitely not a replacement for air purifiers during winter months. Not very worthwhile for the rest of the year too unless you do not own an air purifier or have packed it away, and install this in your AC so that you get slightly cleaner air at the same time as you are using your AC

Used it in a tier 2 city in South India where traffic and dust pollution is more.Fixing it is very easy. After about 4 hours running ac machine with this filter fixed, noticed the change of colour of the filter and that proves that this filter is genuinely catching micro particles.After fixing this filter, ac started to give more noise. Removing this filter, brings the noise level back to normal.Called up ac mechanic to learn more and here is what the advice was.... Putting additional filter like this one to the existing built-in filter will add extra load on the ac machine's motor, because it has to pull air through this minute pore. On longer run, this will spoil the ac indoor unit. Better don't put any block on the air circulation area.So, it is not advisable to have this filter, because it will spoil the machine. For those who feel health is more important that ac machine life, addition of this filter makes ac to produce more noise and noise itself is not good for health.Better don't use this filter.

These filters are made up of very thin material of non woven fibres. In one packet there are 2 filters and 1 packet will serve both net meshes of a wall mounted split AC as you can see in the picture I have attached. Installation of the filters is very simple and leaves no mess. You have to first take out the mesh from your air conditioner. You should then wash it very properly, removing all the lint and fibres from it then you have to install the filters by leaving gap on the sides of both the meshes and then fix the the mesh with the filter in your AC. The filter has double sided tape which can be used to affix it on the margin of the mesh. Further, as a matter of customer friendly gesture, there are 6 small adhesive strips also provided so that no inconvenience is caused in the installation. The air conditioner has started delivering cool and clean air. It should feel very refreshing once you experience it. Overall a good product.

+18% GST on this product... A recent Lancet report says 25% of all deaths in India are related to air pollution. If you see my last air-filter you would agree. Cannot afford to put a new filter every week.

I really admire this product living in polluted city like Delhi. This fits perfectly well on your split AC and installation is very easy. I have also used the other brand available called Health Innovative Air Bliss Health Innovative Airbliss - Convert Your AC Into An Air Purifier but found this 3M one better in terms of usage and performance. The main reason I like this one more is because of the following reasons:1. The filter is thin and easy to fit. It comes with their own tape and you have to just stick them as per the manual provided. Installation took 10 minutes.2. I must say it performs well because within 2 weeks I could see the filter became dark black with all the particulate matters on it. The native dust filter of AC was not affected much.Conclusion:I have used this on split AC, and I think this is the best product you can buy for cleaning the air if you do not have an air purifier. Highly recommended.

It gets the job done.