Respirator Masks Respiratory Protection must use

Until today, I found that still many people does not wear any Respirator Masks or dust mask when they enter the bird house. I had seen people who fall sick because of this and they still not recover until today.

Please click on the picture to enlarge, you will see all those dust capture only by camera with flash where our human eyes does not see in dark environment. Its like dust rain.

I ask them why ; you are not wearing any protection mask? they then answer " I am good- extraordinary " not need- I m healthy " only smell doesnt kill. { you are just too scare}. !! what kind of jokes is this !! I told them they are really wrong and I show them this photo where the camera had capture so much dust inside the air of bird house where human eye does not see inside the dark environment. If you are not wearing anything, you will breath in those dust and inside this dust there will be also germ, micro germ, dust mite, and might caries deceases from those wild bird where might lead to sickness.
You should wear at least a simple mask, if possible buy more proper one for the sake of your health. Otherwise you will be lying on the hospital bed at the day your bird house harvest 1000kilo, but no meaning already.