Vaporizing apparatus and vaporizer thereof

A vaporizing apparatus, comprising:

• a housing enclosing a reservoir for storing a material to be vaporized;
• an absorber configured to absorb the material to be vaporized;
• a heating element configured to heat and vaporize the material to be vaporized in the absorber, and including a first electrode portion, a second electrode portion, and an electrically conductive connecting member connected between the first electrode portion and the second electrode portion;
• a porous cover layer having a rectangular shape and covering at least a portion of the heating element without covering the first and second electrode portions, wherein a ratio of an area of the porous cover layer to an area of the electrically conductive connecting member is defined as a covering ratio, wherein the porous cover layer extends along the electrically conductive connecting member and covers all portions of the electrically conductive connecting member, wherein the covering ratio is at least 100%, wherein a porosity of the porous cover layer ranges from 30% to 75%, wherein an upper edge of the porous cover layer is distanced from an upper edge of the absorber by a gap (D) and a lower edge of the porous cover layer is distanced from a lower edge of the absorber by the gap (D), and wherein the gap (D) is 0.1 mm-0.6 mm;
• and
• a battery providing power to the heating element.