The boxes that arrived are different to the one they showed on Amazon which looked just like the masks I had from the chemist.
The masks look very similar, but you can tell they aren't exactly the same.
Are they just as good?
I did three basic tests. These aren't full medical tests, so they are only a guideline.
1. Dripping water onto the outside layer .
The water beaded up on the outer (hydrophobic) layer and ran off both masks without a noticeable difference between them.
2. Tried to blow out a match 6 inches in front of the mask.
The flame wavered a little bit but wasn't even close to be being blown out, both masks were the same.
3. Cut them in half to check the layers.
Both had 3 layers, but the Amazon mask layers seemed a little thinner.
Under a 120 x microscope the structure of the inner and outer layers was very much the same. The inner layer also looked the same in both.
The overall impression is that the Amazon masks are a tiny bit thinner, but as far as I can tell, they work just as well.
Amazon Price for 2 boxes: 15.78 (Free delivery).
Chemist's price for two boxes: £30.00 (Free delivery over £20).
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