Catalyzes the hydrolysis of pyrethroids pesticides. Catalyzes the hydrolysis of cypermethrin to equimolar amounts of cyano-3-phenoxybenzyl alcohol and 2,2-dimethyl-3-(2,2-dichlorovinyl)-cyclopropanecarboxylic acid. Hydrolyzes cis-permethrin at approximately equal rate to trans-permethrin. (-)-trans-permethrin + H2O = (1S,3R)-3-(2,2-dichlorovinyl)-2,2-dimethylcyclopropanecarboxylate + (3-phenoxyphenyl)methanol + H(+) kcat is 3.03 sec(-1) with trans-Permethrin acetate as substrate. kcat is 3.00 sec(-1) with cis-Permethrin acetate as substrate. kcat is 2.61 sec(-1) with Fenpropathrin acetate as substrate. kcat is 2.53 sec(-1) with trans-Cypermethrin acetate as substrate. kcat is 2.57 sec(-1) with cis-Cypermethrin acetate as substrate. kcat is 1.28 sec(-1) with Cyhalothrin acetate as substrate. kcat is 0.91 sec(-1) with Fenvalerate acetate as substrate. kcat is 0.79 sec(-1) with Deltamethrin acetate as substrate. kcat is 0.44 sec(-1) with Bifenthrin acetate as substrate. kcat is 183 sec(-1) with p-Nitrophenyl acetate as substrate. kcat is 118 sec(-1) with p-Nitrophenyl butyrate acetate as substrate. kcat is 49 sec(-1) with p-Nitrophenyl caproate acetate as substrate. Optimum pH is 7.5. Monomer. Belongs to the AB hydrolase superfamily.