222nm filters play a very important role in the fields of optical research and jewelry identification.15 PCS of 222nm filters, each measuring 108*66*1mm, are about to be shipped to Dubai.
Detail as follow:https://www.suntechleds.com/far-uvc-lamp-light/far-uvc-excimer-light-accessory/far-uvc-filter/uv-filter-222-nm-optical-bandpass-for-far-uvc.html
