search for: kol1

I have a database like this: "kol1";"kol2";"kol3" ... "2";"5";"9" "9";"6";"6" "4";"6";"5"... I looking for a kod in R which let mi aviod in column unnecessary value, for example number "9". So, if I have:...

...e(c(NA, NA, NA, NA, NA, NA, 1L, 2L, NA, NA, NA, NA, NA, 2L), .Label = c("as", "fg"), class = "factor"), toka3 = structure(c(NA, NA, NA, NA, NA, NA, 1L, 2L, NA, NA, NA, NA, NA, 2L), .Label = c("as", "fg"), class = "factor"), kol1 = structure(c(NA, NA, NA, NA, 1L, 2L, NA, NA, NA, NA, 1L, 2L, NA, NA), .Label = c("hj", "ht"), class = "factor"), kol2 = structure(c(NA, NA, NA, NA, 1L, 2L, NA, NA, NA, NA, 1L, 2L, NA, NA), .Label = c("hj", "ht"), class = "factor&qu...