a couple of man and woman protesting against air pollution facto

activist advertising air allergy angry asthma banner beauty billboard blank board breath business businesswoman campaign cartoon caucasian chemistry city concept cough couple crisis crowd date demand demonstration disease ecology emissions emotions epidemic flu gases girl graphic harm health holding human husband illustration industry infection isolated kiss lady life love lungs male man mask medicine men message people person picket placard political politics pollution poster protest protester rally revolution right sign smog smoke strike suffocating vector wedding white wife woman worker