Black leather 'plague doctor' mask.

The mask's beak is lined with a unique, black and purple fungus. The fungus absorbs airborne toxins before they pass through the mask's filter. While wearing the mask, you have advantage against being poisoned or diseased from airborne sources, as well as resistance to the poison damage that they might cause.

 In addition, the mask holds 3 charges and regain 1d4 - 1 expended charges each day at dusk as new fungi grows (minimum 1). You can expend 1 charge using an action to exhale a 15 foot cone of spores in front of you. Creatures caught in the cloud of spores must make a DC 14 Constitution saving throw. On a failure, affected creatures take 2d12 poison damage and their speed is halved until the end of their next turn. On a success, the damage is halved and their speed is unchanged.

Notes: Requires attunement