Having had trouble with various masks not fitting well and even reverting to a damp tea towel on occasions, I purchased this as I have a big job to do clearing out the loft. It is now about 40 per cent done. This mask has enabled me to work in the most dusty atmosphere imaginable. Approx 80 years worth of dust! The adjustments enable a good fit though the straps themselves might have to be readjusted after each wearing. Not much of a problem. Overall I am very pleased with this mask..
I received this the next day after ordering it from a Market Place Seller. No problems with that. However the fan itself is very powerful and shifts a lot of air, so I should be happy, yes? Well not exactly. What I didn't realise was that although it has three speed settings even the lowest setting is actually quite fast with accompanying wind noise. Although it is not ideal for us, I shall keep it as it is ok for some things. I would have been happier and given four or even five stars had it had a nice lazy slow setting. Perhaps I should have read more reviews.