市面(mian)上的(de)防(fang)潮墊(dian)種類不(bu)(bu)(bu)少，采購(gou)前了解一(yi)(yi)(yi)下它們的(de)特(te)點(dian)并(bing)不(bu)(bu)(bu)費時。充(chong)(chong)氣墊(dian)(AirMattresses)：優(you)點(dian)：不(bu)(bu)(bu)用說，肯(ken)定舒(shu)(shu)服(fu)，而且(qie)(qie)可(ke)調(diao)節(jie)(jie)柔軟度(du)，價錢也不(bu)(bu)(bu)貴(gui)。缺點(dian)：太重(zhong)(zhong)(zhong)(zhong)、太大、而且(qie)(qie)容易弄(nong)破。空氣墊(dian)也不(bu)(bu)(bu)能(neng)提(ti)供良好(hao)的(de)保溫。此(ci)外(wai)，對肺活(huo)量(liang)(liang)也有(you)很(hen)(hen)(hen)大的(de)要求。(需(xu)用嘴(zui)來吹(chui)氣。)開放氣室式(Open-cellFoamPads)：由一(yi)(yi)(yi)種象(xiang)海面(mian)一(yi)(yi)(yi)樣的(de)泡沫材(cai)料制成(cheng)。優(you)點(dian)：比充(chong)(chong)氣式更舒(shu)(shu)適、重(zhong)(zhong)(zhong)(zhong)量(liang)(liang)更輕、更便宜、更保暖(nuan)。而且(qie)(qie)較(jiao)重(zhong)(zhong)(zhong)(zhong)、壓(ya)縮性(xing)(xing)(xing)也較(jiao)差(cha)(不(bu)(bu)(bu)宜攜(xie)帶)、使(shi)用壽命也較(jiao)短。 首先必須考(kao)慮暖(nuan)度(du)、重(zhong)(zhong)(zhong)(zhong)量(liang)(liang)、舒(shu)(shu)適度(du)、耐用性(xing)(xing)(xing)和大小等(deng)(deng)依次重(zhong)(zhong)(zhong)(zhong)要。其次要考(kao)慮個(ge)人的(de)主(zhu)要用途。一(yi)(yi)(yi)個(ge)戶(hu)外(wai)愛好(hao)者可(ke)能(neng)會擁有(you)適應不(bu)(bu)(bu)同環境的(de)幾種防(fang)潮墊(dian)。就象(xiang)買其他東西(xi)一(yi)(yi)(yi)樣，購(gou)買戶(hu)外(wai)裝備有(you)時也會讓后(hou)悔，因為實(shi)在(zai)有(you)太多(duo)的(de)東西(xi)需(xu)要考(kao)慮，對每(mei)一(yi)(yi)(yi)樣東西(xi)都會有(you)很(hen)(hen)(hen)多(duo)要求，而在(zai)大部分情況下，所有(you)的(de)要求不(bu)(bu)(bu)可(ke)能(neng)同時得到(dao)滿足。選擇(ze)(ze)防(fang)潮墊(dian)也一(yi)(yi)(yi)樣，有(you)許多(duo)需(xu)要考(kao)慮：絕緣(yuan)性(xing)(xing)(xing)(隔絕身(shen)體與地(di)面(mian)熱交(jiao)換的(de)能(neng)力)舒(shu)(shu)適性(xing)(xing)(xing)重(zhong)(zhong)(zhong)(zhong)量(liang)(liang)、體積耐用性(xing)(xing)(xing)從以上條件中做出選擇(ze)(ze)對來說很(hen)(hen)(hen)重(zhong)(zhong)(zhong)(zhong)要，而考(kao)慮一(yi)(yi)(yi)下戶(hu)外(wai)計劃可(ke)能(neng)對很(hen)(hen)(hen)有(you)幫助。最后(hou)，一(yi)(yi)(yi)些(xie)附(fu)屬(shu)設計可(ke)能(neng)會影響決定。比如，一(yi)(yi)(yi)些(xie)防(fang)潮墊(dian)有(you)多(duo)重(zhong)(zhong)(zhong)(zhong)可(ke)充(chong)(chong)氣氣室，使(shi)得防(fang)潮墊(dian)的(de)厚度(du)更容易調(diao)節(jie)(jie)；多(duo)個(ge)墊(dian)子可(ke)拼接(jie)一(yi)(yi)(yi)起；通過配件可(ke)將充(chong)(chong)氣墊(dian)改成(cheng)椅子；等(deng)(deng)等(deng)(deng)。