This study used a new engineering intervention measure, embracing air curtain device, toincrease the capture efficiency of kitchen range hoods and reduce COF exposure for Chinese restaurantworkers. The embracing air curtain devices (EACD) were installed in six Chinese restaurants in whichthe cooks complained of COF exposure. Before- and after- installation measurements were taken tocompare changes in particulate matter (PM) and polycyclic aromatic hydrocarbons (PAHs) in kitchenair, and in levels of urinary 8-hydroxy-2’-deoxyguanosine (8-OHdG) and malondialdehyde (MDA).The association of PM and PAHs in air and 8-OHdG and MDA in urine was evaluated by linearmixed–effects regression analysis. The results for the six restaurants studied showed that geometricmean kitchen air levels of PM10, PM2.5, PM1.0, and total particulate PAHs were significantly reducedafter the engineering intervention was implemented with the EACD. Urinary levels of 8-OHdG andMDA in cooks were significantly lower after the EACD installment. PM2.5, PM1.0, and benzo(a)pyrene(BaP) levels were positively associated with urinary 8-OHdG levels after adjusting for key personalcovariates. Furthermore, urinary MDA levels in cooks were also positively associated with BaP levels.This study demonstrates that the EACD is effective for reducing COF and oxidative stress levels incooks working in Chinese kitchens.