The Synfil filter media is 120gsm polypropylene synthetic media
It's rated F7 – micron rated as follows
Can also be used with TFM200 Grey(1000x500x6mm) Pre Filter - this is a washable pre-filter that can be re-used several times and captures larger heavier dust particles, protecting the Synfil filter and elongating its life. $30 sheet plus postage. Click here to purchase.
The Synfil media is 120gsm polypropylene synthetic media rated F7 – micron rated as follows
Hepa particle filtration @ 0.3 micron capture