In short, had a bad DE experience (I was warned; at least I used a P100 respirator due to you all, but even after cleaning it all up, still coughing and short of breath). Haven't been able to find lower bound for particle size of DE, and would prefer not to have to buy a 160$ unit. Looking at either the honeywell 50250 S or the honeywell quietclean compact HFD 010. The former filters particles as small as .3 microns whereas the latter it doesn't say the particle size it filters (just that it filters 99% of particles). Is there a number such that if the air purifier filters most particles of size __, it'll suffice?
I really appreciate it.