Some low cost options to test your mask / respirator for a good fit. (This is different from the user seal check that you should do every time you put it on to ensure a good seal is formed with no gaps or leaks)
Based on the US ARMY method, you can do a decent fit test on your mask / respirator at home using a nebulizer ($30), sweet ‘n low and a garbage bag.
I think I have already shared this with you, but I recommend #TransplantTwitter do a home DIY fit test of chosen respirators. You can use a nebulizer ($30), sweet ‘n low and a garbage bag. https://t.co/LINn5rfufo— Philip Neustrom (@__philipn__) October 19, 2021
Perfume atomizer method
An inexpensive DIY method you can use at home: