Tanda mai bushewa, na'urar da ake amfani da ita don dumama, bushewa, ko kula da matsanancin zafi ko abubuwa masu lalacewa.Yana iya samar da oxygen kyauta ko ƙananan yanayin iskar iskar oxygen don hana iskar oxygen abu ko canje-canje.An yi amfani da wannan na'ura sosai a fagage da yawa saboda yawan aikace-aikacenta, kamar kiwon lafiya, gwaje-gwajen kimiyya, da samar da masana'antu.

1. Shiri kafin amfani

(1) Zaɓi kayan aikin bushewa masu dacewa (samfurin, iya aiki, da dai sauransu) bisa ga buƙatun bushewa;

(2) Sanya shi a cikin matsayi da kwanciyar hankali;

(3) Haɗa wutar lantarki, bututun hakar, da tashar jiragen ruwa.

2. Aikin farawa

(1) Kunna ikon mai watsa shiri;

(2) A hankali duba yanayin zoben roba na kofa, rufe bawul ɗin shaye-shaye, sannan buɗe bawul ɗin yatsan ruwa;

(3) Kunna filogin wuta a cikin akwatin;

(4) Danna maɓallin "Vacuum Extraction", haɗa bututun cirewa zuwa samfurin busasshen, kuma fara aikin cirewa;

(5) Lokacin da matakin injin da ake buƙata ya kai, danna maɓallin "Close Vacuum Leakage Valve", rufe bawul ɗin ɗigon ruwa, kuma yi amfani da maɓallin "Duba" don daidaita yanayin zafi a cikin akwatin.(Lura: Ya kamata a rufe bawul ɗin yatsan ruwa da farko sannan a kunna dumama);

(6) Bayan jiran bushewar ya ƙare, rufe maɓallin "haɓaka injin", buɗe bawul ɗin shaye-shaye, kuma mayar da matsa lamba na yanayi.

3. Kariya don amfani

(1) Ya kamata a yi amfani da kayan aiki a ƙarƙashin yanayin da ya dace da bukatun yanayin yanayi;

(2) Haɗin gwiwa na bututun hakar ya kamata ya kasance mai ƙarfi kuma kada a sami raguwa, in ba haka ba zai shafi sakamakon gwaji;

(3) Kafin aiki, duba ko zoben roba na kofa ba shi da kyau, in ba haka ba yana buƙatar canza shi a cikin lokaci;

(4) A lokacin aikin dumama, ya kamata a rufe na'ura a kan lokaci don kwantar da kayan aiki, don kauce wa gazawar kayan dumama saboda yawan zafi;

(5) Bayan amfani, tsaftace kayan aiki kuma yanke wutar lantarki a kan lokaci.

A taƙaice, yin amfani da tanda bushewa bisa ga daidaitattun hanyoyin aiki na iya inganta rayuwar sabis da ingancin na'ura yadda ya kamata, samar da ingantaccen tushe na gwaji don gwaje-gwajen filin da suka dace.