Belte r r a Cor p or at ion S afety M an ual D oc I D C H S M BE L 2 0 1 7 Pa g e 2 35 of 53 8 Ac c e p t e d R e sp irat or a re spira to r te sted a nd c e rtifie d b y p roc e du re s e st a bli she d b y the N a ti ona l I nsti tut e for Oc c up a ti ona l S a fe t y a nd He a lt h N I O S H Air P u r if yin g R e sp irat or a re spir a tor w it h a n a ir purif y in g filt e r c a rt ridg e o r c a nist e r tha t re mo ve s spe c ific c ont a mi na nts b y pa ssi ng a mbi e nt a ir throu g h the a ir purif y in g e lem e nt At m osp h e r e S u p p lyi n g R e sp irat or a re spir a tor that suppl ies the re spira t or use r w it h bre a thi ng a ir g a s fr om a sour c e indepe nd e nt of the a mbi e nt atmospher e Dust M ask The c omm o n na me f or a filt e rin g fa c e piec e re spir a tor E xh alation V alve A de vice that a ll ows e x ha led a ir to l e a ve a re spir a tor a nd pr e ve nts ou tsi de a ir f r om e nter in g throu g h the va lv e Doc u m e n t Identif icat ion S E L 033 P age Nu m b e r 2 of 14 Doc u m e n t C r e ation Dat e Ma y 2 2015 Im p le m e n tat ion Dat e J une 30 2015 F ac e p iec e Tha t porti on of a re spir a tor tha t cov e rs the w e a r e r s nose a nd m outh F il te r or A ir P u r if yin g E lem e n t A me dia c omp one nt used to re move sol id or li quid par ti c les f ro m t he inspi re d a ir F it T e st The us e of a p r otocol to qualit a ti ve l y or qua nti tativel y e v a luate th e fit of a pa rtic ular r e spir a tor to a spe c ific p e rson A fit test mus t be r e pe a ted a n nua ll y Hazar d ou s A t m osp h e r e a n y a tm osphe re th a t i s ox y g e n de fi c ient e x c e e d s oc c upa ti ona l ex posure li mi ts pre se nts a f ire ex plosi on ha z a rd a ndor c on tains a n a irbor ne tox ic or disea se produ c in g c ontaminant in conc e ntr a ti ons de e med to be ha z a r dous NIOS H Na ti ona l I nsti tu te f or O c c upa ti ona l S a f e ty a nd He a lt h N I OSH pr ovides a t e sti ng a pprov a l a nd c e rtific a ti on pr ogra m fo r re spira tors f il ter s a nd c a r tridg e s NIOS H Ap p r ove d C e rtifie d for use b y the Na ti o na l I nsti tut e fo r O c c upa ti ona l S a fe t y a nd H e a lt h N I OSH Imm e d iate ly Dan ge r ou s to Li f e an d Healt h At m osp h e r e ID L H a n a tm osphe re that pose s a n im media te thr e a t t o li fe would c a use a dve rs e he a l th ef fe c ts or would im pa ir a n indi vidual s a bil it y t o e sc a pe Occ u p ation al E xp os u r e L im its OEL s The ma x im u m conc e ntra ti on of a n a ir c ontaminant to whic h wor kin g pe ople c a n be e x pose d for a spe c if ied tim e int e rva l usu a ll y the ma x im um a ve ra ge e x posure a ll owe d throug hout an e nti re e i g ht hour shift O E L s a r e t y pica ll y P E L s or T L Vs whic h a r e a lso de f ined in thi s sec ti on I n the a bse n c e of for mall y r e c o g niz e d or r e g ulator y de fine d OE L s a c he mi c a l m a nufa c ture r ma y e stablis h a n e x posure li mi t t ha t i s a pprop ria te to use Alter na ti ve l y the o c c u pa ti ona l hea lt h st a ff will ha ve to dete rmine o r de v e lop an a pprop ria te prote c ti ve leve l