Versione base del filtro fatto a mano per il piccolo Tia

filter.py

import csv

with open('input.txt', 'r', encoding='iso-8859-1') as csvfile:
    reader = csv.reader(csvfile, delimiter=' ')
    with open('output.txt', 'w', newline='', encoding='iso-8859-1') as outfile:
        writer = csv.writer(outfile, delimiter=' ')
        writer.writerow(next(reader))
        for row in reader:
            # 1000, 5, 28, 2
            if float(row[1]) > 1000 or float(row[2]) > 5 or float(row[3]) > 28 or float(row[4]) > 2:
                print(row)
                writer.writerow(row)