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Under normal use a Lithium Ion battery should last a long long time although performance will degrade slightly over time
Do not use plastic bottles, rubber hoses, PVC, foil, or aluminum because these can release toxic fumes when heated
Every manufacturer who contravenes section 7.2 of the TVPA by manufacturing or selling a vaping product containing over 20 mg/mL nicotine, contrary to the Regulations, is guilty of an offence and liable (a) on summary of conviction to a fine not exceeding $500,000 or to imprisonment for a term not exceeding one year, or to both, or (b) on conviction on indictment to a fine not exceeding $1,000,000 or to imprisonment for a term not exceeding two years, or to both (see subsection 43(1) of the TVPA)
Further reading The Best Dehumidifiers by Tim Heffernan Weve found dehumidifiers that are easy to live with and effectively reduce ambient moisture in your home