GVS FilterTechnology SPR316 Pair of P3 Dust Replacement Filters,White,21 cm x 11 cm x 3 cm

Perfect fit

This mask is a proper mask. Adjusted properly it can be almost airtight. That means that it is actually filtering out most of the bad stuff. It also helps if you wear glasses because they don’t steam up with the exhaled air condensing on the cold glassesGreat product

I use these, believe it or not, to wear around my flat because I get an insurmountable amount of smoke coming into the place through cavities. I am in a block of modern flats but something was obviously overlooked. These filters do a good job. You need the half mask obviously, but I get these filters as replacements every so often. The half mask is a very good design and generally comfortable to wear, even when sleeping. They really do the job. I can breathe. Until I can move, these are the most important item in my flat.

These are very fragile and can disintegrate whilst inserting them into the mask. On closer inspection the filters look like they are only made of hardened toilet paper. I am not saying they 'are' hardened toilet paper, but their fragility looks like it. And then this makes one feel they are way over-priced. But the problem is that if one owns the mask that takes these filters there is no choice (I believe) but to buy these filters. Otherwise, one has to buy a different mask system. Very disappointing.

if it does I would like to order some more spare filters

Comfortable but hard to wear for longer than an hour without discomfort breathing

Like the title

Overpriced!