[LilFarmer]

Important -

Pretty definitive information about sterilizing masks for re-use forum the guy who designed them.

https://utrf.tennessee.edu/information-faqs-performance-protection-sterilization-of-face-mask-materials/

[PA Engineer]

Thanks for the post. Same advice given by Stanford. I drilled down into it and it looks like they increased the MERS study inactivation temperature by 5C and doubled the time.

These are still in stock: Soiiw CH-360T Heat Sterilizer 300W 1.5L w/Timer Disinfection Box Manicure Pedicure SPA Salon Equipment for Sundry Beauty Hair Nail Metal Tools with Handle

We've used it daily with the wife's N95. We just bag and date them as she cycles them. Nice little unit still in stock, however the price has gone up $5.

I'm cautious about the large industrial units using hydrogen peroxide for large scale disinfection. I think the wiser approach would be a wider hospital distribution of these units to prevent a single point of failure with centralized products.

JMHO YMMV

[Jane Long]

Good N95 mask disinfecting info....thanks for posting.

From your link....

As indicated in Figure 1, masks can be treated in hot air at 70°C for 30 minutes, and this process can be repeated multiple times without a noticeable loss in FE. But be sure to suspend the masks in the hot air without contacting or nearing a metal surface. The respirator can be hung in the oven using a wood or a plastic clip on the edge of a non-breathing zone

= = =

70º C is 158º F