Hi all, I’m a newbie to oxygen therapy (started in November) and this is my first winter with a portable oxygen concentrator. Temperatures have fallen to regularly < 30 degrees, and sometimes dip below zero with the wind chill. I’ve read that temperatures < 40 are not good for POCs and their sieve beds. Do you all have any tips for surviving the cold winter months with o2 I’m wondering if maybe I should switch to a home fill system and use cylinders if the weather could interfere with equipment function. Thanks!