Biohazard Infects the night with 24 neon-green and yellow bursts followed by eerie crackles and rain effects A glowing, toxic backyard thrill delivering sci-fi horror atmosphere perfect for contamination-themed displays 24 bursts create sustained toxic atmosphere Neon-green and yellow colors enhance biohazard theme Eerie crackles provide chilling audio effects Rain effects add contamination visual elements Sci-fi horror theme perfect for themed parties Toxic atmosphere ideal for Halloween or horror events