P PT Pacific Prima Utama is a furniture company that produce sofa. Prod uce part which being done by PT Pacific Prima Utama still manually . Speed and production quantity arcertained by labour acti\'ity production. Therefore, PT Pasific Prima lltama want to increase work productivity and comfortable work of the labour. According to observation and interview, latex division ha\•e problem with work em•ironmen t and work position which is not good.To identify work environment that latex production is not so good. roomtemperature being done, counting exhaustfan amount, wall colour, bad smell in the work place, room light measurement , and measurement of noise. The first condition producti\'e percent measurement done by using work sampling method.To identify work position which is not comfortable, measure and obserrntion to tools that latex division worker usually use , data collection in nordic body map questionnaire result, work position obser\'ation in latex division, and fill checklist upper extremity cummulati\'e trauma summary checklist being done. The first work mom en t position account ith Mannequin Pro 7 help and manufacture RULA surn y with software Ergoweb ®JET help .To reduce uncomfortable work position . giYcn tools acceptable propo<;aJog glue sofa body construction and adjustable table . Moment of work position can be account with ManneQuin Pro 7 help. According to momen calculation, prop•Jsed worked position give total moment decreasement. In another way, the conclucion gi\'en by RU L.'\ sun•ey shows that there is action level decreasement as big as one level to glue sofa body construction , glue sofa body construction lean. and fit the foam to the sofa bod y lean . Meanwhile, in the fit foam work to sofa body sit, there is not action level changing.To fit work environment that latex division is not so good, experiment workenvironment factors which predicted affect work productivity has been done. The factors are busy factor, smell factor, and temperature and air ciculation factor. E:-:pcrimcnt consecutively done according to experiment randomization rotation result \Vhich is being manufactured by software Minitab V .13.2. Respons variable measurement Ii ke worker productive percent in latex division. ANOV A experiment use to know factors which will be experimented give effect to work productivity or no. After that, Duncan experiment being done to know if there is an differen t average between act level from factor give different work productivity. According to ANOVA and duncan hypothesi s which has been done work with use ear stopper, use mask, and van adding is compare the most optimal condition to increase work productivity .The result of productivity percentage comparison indicated that there are increased of productivity percentage as big as 8.472% on the first observation , 6.042% on the second observation , 8.681 % on the third observation, 8.611% on the fourth observation, and 7.876% on the fifth obser;ation.