Can a KN95 mask (with breathing valve) provide protection when spraying with water-based paint?

It should not be possible. Tamiya's water-based toxicity is very low, but the most basic thing is to pay attention to environmental ventilation and not to use it in a closed room, such as turning on air conditioning in summer. However, it is better to use protective equipment if conditions permit. Yes, but ordinary masks are useless. If you want to use them, be sure to choose a 3M anti-organic vapor mask. Wearing a general anti-particulate dust mask is the same as not wearing it, but

. High-grade medical masks have excellent barrier properties against particles and fluids, ensuring breathability in precise working environments. It can also prevent odors. Sources of toxic particulate matter in cities: firstly, car exhaust. Medical masks imported from the United States have good filtration properties and prevent not only particulate matter but also droplets. The filtration efficiency for particles as small as 0.1 microns reaches 99.8, and the filtration efficiency for bacteria or viral vectors (common in droplets) as small as 0.3 microns reaches 99.9. Using SecureFit patented technology, it can be adjusted to adapt to different face shapes to achieve a high fit. For the health of you and your family, wear a mask when going out. I wish you happiness and hope you will adopt it in J's good style.