Filtrete air con filters -- I've been doing it wrong?

[Lorry]

1 hour ago, Fruit Trader said:

 

Here is link to Thai 3M Filtrete website showing split air products.

https://filtrete.3m.co.th/3M/th_TH/filtrete-th/products/air-conditioner-cleaning-filter

Thx, correct website, better than 3M website.

But the links to the products are "under maintenance".

I really love all things online 

[Lorry]

I fitted Filtrete into my wall-mounted Daikin unit after having the unit cleaned. 

The wall-mounted unit (not the compressor) is quite noisy know.Is this a typical effect of Filtrete? (I have never used Filtrete before)

Or is this an effect of shoddy cleaning? (My Mitsubishi unit got noisy after cleaning,  no Filtrete involved)

[Lorry]

On 7/5/2017 at 1:32 PM, Crossy said:

What do the instructions say?

3M says, cover only 50% -66%

[msbkk]

On 7/5/2017 at 4:55 PM, sfokevin said:

They must filter something as they turn dark gray after a couple weeks use...

Fully agree with that. I am using the 3M filters and cover only about 60% of the required area. Within a few days the filter turns from white to grey and black within 2-3 weeks. This black dust would otherwise be in my lungs. I am in Bangkok.

[Lorry]

54 minutes ago, msbkk said:

This black dust would otherwise be in my lungs

The pm2.5 part of it would not be in your lungs - it passes through the lungs and goes directly into your blood. 

 

Did the Filtrete make your a/c more noisy?

[msbkk]

3 hours ago, Lorry said:

The pm2.5 part of it would not be in your lungs - it passes through the lungs and goes directly into your blood. 

 

Did the Filtrete make your a/c more noisy?

The filters of 3M are very thin and there is no change in noise level at all.

[zappalot]

I would never obstruct the airflow off the air conditioner in any way.

 

We are using the air purifiers from Hatari since I can easily mount a Filtrete in front of the original Hatari filter. Just takes a few minutes. This makes them very cheap to operate in the long run. The actual filter from Hatari I only replace every one or two years.

 

So in our 50 m² lobby we operate three such air purifiers and get down the AQI index down to about between 15 and 25. In my a bit less than 15 m² office I only operate one such purifier and I have an AQI index between zero and 12. The given values applied to outside AQI about 150.