@lyncia What are you looking for? Full- or half-face? I've been using a 3M 6200 (available at most hardware stores) with 7093 P100 filters for the past 8 months or so. My new mask is a Strong ST-S100 (sold in the US by Parcil as a PD-100), which takes 3M filters or its proprietary screw-on ones with included adapters. Pretty much any elastomeric mask with N95 filters is gonna give you good protection, with P100 filters being even better. There's also stuff from MSA, Dentec, etc.
@lyncia There have been a few new SC masks released since the start of the pandemic, though, like the MSA Advantage 900 or the Dentec Comfort-Air. The Advantage 900 features a voicemitter diaphragm, so you aren't muffled as much when speaking. Those two masks, however, operate so you breathe in AND out through the main filters, meaning they can get really humid as moisture gets trapped inside the filters and humidifies incoming air.
@lyncia The separate filter on the exhaust port, like with the 3M, means you preserve one-way airflow, keeping moisture down. It does come at the cost of severely muffling your voice, though, as the 3M masks lack a voicemitter. My ST-S100 doesn't have this issue, despite my jury-rigged exhalation filter, thanks to its built-in voicemitter.
@lyncia Another half-mask respirator i've heard good things about is the GVS Elipse. It's pretty light and compact and has source control variants (including proper one-way airflow on the P3 filter model). The main issue is that the filters aren't readily sold most places, so you'd have to order replacements online.
Gc.c is an instance by trans women for trans folk and strives to keep the security and enjoyment of our users in mind.