Abstract: The present invention provides a fastener mounting clip for use in securing a fastener to sheet material having a bore hole formed therein. The fastener mounting clip is preferably formed of a single sheet of thin spring steel. The mounting clip includes a rectilinear planar surface having opposing retainer arms extending beneath its outer edge at obtuse angles. The retaining arms are resiliently flexible and compress and expand during insertion wherein a top end of the retaining arm abuts against the sheet material when the fastener mounting clip is fully seated within the bore hole. The planar surface includes support tabs for supporting the planar surface in the plane of the sheet material and also includes a recessed aperture for receiving and retaining a fastener therein.

Abstract: The present invention provides a fastener mounting clip for use in securing a fastener to sheet material having a bore hole formed therein. The fastener mounting clip is preferably formed of a single sheet of thin spring steel. The mounting clip includes a rectilinear planar surface having opposing retainer arms extending beneath its outer edge at obtuse angles. The retaining arms are resiliently flexible and compress and expand during insertion wherein a top end of the retaining arm abuts against the sheet material when the fastener mounting clip is fully seated within the bore hole. The planar surface includes support tabs for supporting the planar surface in the plane of the sheet material and also includes a recessed aperture for receiving and retaining a fastener therein.

Abstract: The quality of the external air is determined by means of a pollutant sensor. The quality of the internal air is determined by calculation taking account of the air quantities introduced from outside into the internal space. A decision between air supply operation and air recirculation operation is then made on the basis of a comparison of the air qualities inside and outside. The pollutant sensor is preferably located in a casing whose internal space is accessible to gases through an opening which is preferably sealed by a gas-permeable membrane.

Abstract: A ventilation arrangement for the interior of a motor vehicle, having at least a heating or air-conditioning unit. The ventilation arrangement has a fan for air exchange in the interior and a filter for the adsorption of odorous and/or harmful substances contained in the air stream. The filter is designed so that, for the widest possible spectrum of odorous and/or harmful substances, a filter effect is produced which is based on rapid adsorption of the odorous and harmful substances and a gradual desorption thereof with a long time delay. A high short-term concentration of the odorous and/or harmful substances is thus converted by the filter into an extremely low but, instead, long-lasting emission which, with sufficiently extensive dilution, remains below a preset odor threshold or nuisance threshold.