water purification element chemistry science concept hand drawn isolated vector |
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| navigate by keyword : aqua bacteria bactericidal business chemical chemistry chloride chlorination chlorine clean concept design disinfect disinfection drawing drawn drinking drop education element facility filter filtration graphic hand icon illustration isolated liquid molecule pictogram plant pool purification purify sign sketch symbol system vector water web |
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| Water, purification, element, chemistry, science concept. Hand drawn chemist examines water concept sketch. Isolated vector illustration. |
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