Don't even need to be aggressive about FIFO. Buy with 5y shelf life, sell off and rotate when there's 1y left. The average construction site/whatever will happ

Don't even need to be aggressive about FIFO. Buy with 5y shelf life, sell off and rotate when there's 1y left. The average construction site/whatever will happily buy N95s that will expire in 6 months for a 20% discount because when they go through a pile every week. Heck, I buy nearly expired allergy pills for a discount because I know that the API is super stable in solid form at standard conditions.