How are these neumbers?

[hlynur76]

Hello guys.

I´m working hard to have a low humidity where my collection are.

Isn´t 40% pretty good? And what about temp? Is that important?
.

[Paul R.]

It a bit low but okay. Ideally should be approximate 43%-45% humidity at 17c (about 62 degrees).

[hlynur76]

It a bit low but okay. Ideally should be approximate 43%-45% humidity at 17c (about 62 degrees).

I guess 43%-45% is ideal because I got all kinds of material in my collection. Uniform, visor, helmets with leather and awards (Iron, tombak & Zinc).

Thanks for info Paul

[Paul R.]

Thanks! I forgot to add that low humidity levels can dry item out below 38% humidity. Such as leather, wood, glued together items, paintings, plastic, Bakelite, visor brims, thin leather sweatbands in visors.