1、通(tong)(tong)(tong)(tong)風(feng)(feng)(feng)氣(qi)(qi)(qi)(qi)樓(lou)(lou)(lou)(lou)選型(xing)(xing)要(yao)素：廠(chang)(chang)房(fang)(fang)面積(ji)、通(tong)(tong)(tong)(tong)風(feng)(feng)(feng)量(liang)需(xu)(xu)求(qiu)、進排氣(qi)(qi)(qi)(qi)口(kou)(kou)位置、通(tong)(tong)(tong)(tong)風(feng)(feng)(feng)氣(qi)(qi)(qi)(qi)樓(lou)(lou)(lou)(lou)規格及(ji)(ji)通(tong)(tong)(tong)(tong)風(feng)(feng)(feng)面積(ji)等(deng)。2、通(tong)(tong)(tong)(tong)風(feng)(feng)(feng)量(liang)是(shi)風(feng)(feng)(feng)速(su)與風(feng)(feng)(feng)道(dao)截(jie)面積(ji)的(de)乘積(ji)。所以風(feng)(feng)(feng)量(liang)計(ji)(ji)算(suan)(suan)也很簡單，直接用公式Q=VF便可算(suan)(suan)出(chu)風(feng)(feng)(feng)量(liang)。3、根(gen)據(ju)所選房(fang)(fang)間的(de)換氣(qi)(qi)(qi)(qi)次(ci)數(shu)來計(ji)(ji)算(suan)(suan)廠(chang)(chang)房(fang)(fang)所需(xu)(xu)總(zong)(zong)(zong)風(feng)(feng)(feng)量(liang)，以及(ji)(ji)換氣(qi)(qi)(qi)(qi)高(gao)度(du)，進而利用工式計(ji)(ji)算(suan)(suan)出(chu)需(xu)(xu)要(yao)安裝的(de)通(tong)(tong)(tong)(tong)風(feng)(feng)(feng)氣(qi)(qi)(qi)(qi)樓(lou)(lou)(lou)(lou)數(shu)量(liang)。4、通(tong)(tong)(tong)(tong)風(feng)(feng)(feng)氣(qi)(qi)(qi)(qi)樓(lou)(lou)(lou)(lou)型(xing)(xing)號(hao)(hao)的(de)選擇(ze)應該根(gen)據(ju)廠(chang)(chang)房(fang)(fang)實(shi)際情(qing)況，如建(jian)筑結(jie)構、廠(chang)(chang)房(fang)(fang)換氣(qi)(qi)(qi)(qi)高(gao)度(du)、預(yu)留(liu)洞(dong)口(kou)(kou)尺寸(cun)等(deng)。5、要(yao)盡量(liang)選取與原(yuan)窗口(kou)(kou)尺寸(cun)相匹(pi)(pi)配的(de)屋頂通(tong)(tong)(tong)(tong)風(feng)(feng)(feng)氣(qi)(qi)(qi)(qi)樓(lou)(lou)(lou)(lou)型(xing)(xing)號(hao)(hao)，這樣便于施工或者(zhe)節省工程材料，實(shi)現良好的(de)通(tong)(tong)(tong)(tong)風(feng)(feng)(feng)換氣(qi)(qi)(qi)(qi)效果。6、在屋面預(yu)留(liu)洞(dong)口(kou)(kou)尺寸(cun)確定(ding)的(de)情(qing)況下(xia)，無論選擇(ze)薄型(xing)(xing)通(tong)(tong)(tong)(tong)風(feng)(feng)(feng)氣(qi)(qi)(qi)(qi)樓(lou)(lou)(lou)(lou)或者(zhe)流線型(xing)(xing)通(tong)(tong)(tong)(tong)風(feng)(feng)(feng)氣(qi)(qi)(qi)(qi)樓(lou)(lou)(lou)(lou)，應考(kao)慮不同通(tong)(tong)(tong)(tong)風(feng)(feng)(feng)氣(qi)(qi)(qi)(qi)樓(lou)(lou)(lou)(lou)型(xing)(xing)號(hao)(hao)及(ji)(ji)規格的(de)通(tong)(tong)(tong)(tong)風(feng)(feng)(feng)量(liang)，根(gen)據(ju)通(tong)(tong)(tong)(tong)風(feng)(feng)(feng)氣(qi)(qi)(qi)(qi)樓(lou)(lou)(lou)(lou)單位長度(du)通(tong)(tong)(tong)(tong)風(feng)(feng)(feng)量(liang)以及(ji)(ji)總(zong)(zong)(zong)設計(ji)(ji)用量(liang)計(ji)(ji)算(suan)(suan)總(zong)(zong)(zong)體通(tong)(tong)(tong)(tong)風(feng)(feng)(feng)量(liang)是(shi)否與廠(chang)(chang)房(fang)(fang)通(tong)(tong)(tong)(tong)風(feng)(feng)(feng)需(xu)(xu)求(qiu)相匹(pi)(pi)配。