how to check 3M N95 expiry date?
The shelf life of 3M N95 respirators is 3 years from the date of manufacture if stored and transported under the following conditions:
Storage conditions between 4ºC to 50ºC
Relative Humidity not exceeding 90%
Packaging and all contents must remain dry, stored away from direct sunlight
To check on the expiry date of the respirator, please refer to the Lot Number printed on the respirator (click here for an example). If the Lot Number shows a number LOWER than XXXXX, the respirator is expired. http://solutions.3m.com.sg/wps/portal/3M/en_SG/WW/3MResponse/
too bad that the link is not available anymore, but I notice that the lot number checking is for the older packaging, the new packaging come with the expiry date in the box.
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