Abstract: A face mask for use as a procedure mask, isolation mask or dental face mask having a transparent shell with one opening for covering the nose and mouth of a person and a housing having a first and a second air passageway with a chamber located therebetween for holding a replaceable filter coupled to the one opening in the transparent shell. Elastic straps which are attached to the transparent shell are adapted to be placed around a user's head to hold the transparent shell against the face of the user and the transparent shell is made of a clear latex free plastic.

Abstract: The invention provides a method and apparatus for repelling grackles away from their tree roosts by continuously or intermittently (i) moving/rustling limbs, branches and leaves in the tree and (ii) causing low decibel sounds to be emanated that scare grackles and disrupts the natural roosting environment. The invention is cost effective, non-lethal to the grackles, and uses no chemicals/pesticides. The invention protects property and person from the damaging, unhealthy and annoying effects of grackle waste droppings and crowing noise. The invention contributes to the profitability of commercial enterprise by repelling and averting grackles away from trees on or near (i) fields used by farmers for growing crops such that the crops and seedlings will not be eaten by nearby roosting grackles, and/or (ii) retail commercial establishments such that customers will not avoid patronizing the nearby merchants simply because of the presence of grackles and their noises and droppings.