(A) Component: Silver, a silver compound, or the support body of silver or a silver compound, (B) component: The self-injection type formula space processing agent containing the compound represented by the following general formula (I). R1-O- (AO) x-R2 (I) (in the formula (I), R1 and R2 each independently represents a hydrogen atom or a hydrocarbon group having 1 to 6 carbon atoms, and AO represents oxy Represents an alkylene group, and AO includes an oxyethylene group and at least one of an oxypropylene group and an oxybutylene group, and x is a number of 20 to 500.)(A)成分:銀、銀化合物、若しくは銀又は銀化合物の担持体と、 (B)成分:下記一般式(I)で表される化合物と、を含有する、自噴式空間処理剤。 R1-O-(AO)x-R2 ・・・(I)(式(I)中、R1及びR2はそれぞれ独立して、水素原子又は炭素数1~6の炭化水素基を表し、AOはオキシアルキレン基を表す。前記AOは、オキシエチレン基と、オキシプロピレン基及びオキシブチレン基の少なくとも一方とを含み、xは20~500の数である。)